# ./configure --prefix=/usr --sysconfdir=/etc --disable-masq --disable-nat --disable-ipv6

checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for bison... bison -y
checking for flex... flex
checking for yywrap in -lfl... yes
checking lex output file root... lex.yy
checking whether yytext is a pointer... yes
checking for flex... /usr/bin/flex
checking for ranlib... ranlib
checking for a BSD-compatible install... /usr/bin/install -c
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for __attribute__... yes
checking for egrep... grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking netinet/ip_compat.h usability... no
checking netinet/ip_compat.h presence... no
checking for netinet/ip_compat.h... no
checking netinet6/in6_pcb.h usability... no
checking netinet6/in6_pcb.h presence... no
checking for netinet6/in6_pcb.h... no
checking for u_int32_t... yes
checking for u_int16_t... yes
checking for u_int8_t... yes
checking for socklen_t... yes
checking for in_addr_t... yes
checking for in_port_t... yes
checking for setsockopt... yes
checking for inet_ntop... yes
checking for getaddrinfo... yes
checking for freeaddrinfo... yes
checking for getnameinfo... yes
checking for gai_strerror... yes
checking for vasprintf... yes
checking for asprintf... yes
checking for snprintf... yes
checking for vsnprintf... yes
checking for inet_aton... yes
checking for getpagesize... yes
checking for getopt_long... yes
checking for struct addrinfo... yes
checking for struct sockaddr_storage... yes
checking for ss_family member in struct sockaddr_storage... yes
checking for main in -ludb... no
checking netinet/ip_nat.h usability... no
checking netinet/ip_nat.h presence... no
checking for netinet/ip_nat.h... no
checking /usr/src/sys/contrib/ipfilter/netinet/ip_nat.h usability... no
checking /usr/src/sys/contrib/ipfilter/netinet/ip_nat.h presence... no
checking for /usr/src/sys/contrib/ipfilter/netinet/ip_nat.h... no
configure: WARNING: not including NAT/IP masquerade support.
configure: WARNING: not including IPv6 support.
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating src/missing/Makefile
config.status: creating doc/Makefile
config.status: creating config.h
config.status: executing depfiles commands